9. The statement says it was extremely wet yesterday
10. By saying last year's prices were more affordable than this year's, that would imply that the present is the opposite of the past. The opposite of more is less, so it would be less affordable.
As for the first part, Cost, Radiation exposure to humans, No water or heat, and unfit soil. As for the second, Astronomers, Botanists, and obviously your fair share of rocket scientists and math matitions for the way up.
